Planned strikes by British Airways cabin crew on Christmas Day and Boxing Day have been suspended, the Unite union has said.
Members were due to walk out in a dispute over pay.
The union said workers employed in the so-called mixed crew - who have joined since 2010 - were on lower pay than other staff.
Lengthy talks at conciliation service Acas have led to a revised offer which will be put to a ballot of union members
Talks aimed at averting strikes by British Airways cabin crew on Christmas Day and Boxing Day will resume on Thursday.
Unite leader Len McCluskey and other union officials spent a second day meeting the company under the chairmanship of the conciliation service Acas, before talks were adjourned at 12.30am.
A spokesman said the union continued to pursue progress in the dispute, seeking an improvement on the "poverty pay" of cabin crew employed in the so-called mixed fleet.
BA says it will run a full service on both days even if the strikes by Unite members go ahead.
The talks come as the pre-Christmas bout of industrial unrest rumbles on, with workers who deliver cash to Post Offices striking on Thursday and Friday.
Members of the Communication Workers Union will walk out as part of a campaign against job losses, the closure of a final salary pension scheme and closures.
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Talks aimed at averting strikes by British Airways cabin crew over Christmas will be held at Acas on Monday.
Members of Unite are due to walk out on Christmas Day and Boxing Day in a dispute over pay.
An Acas spokesman said: "We can confirm that BA and Unite have accepted our invitation to attend conciliation talks in respect of the cabin crew dispute tomorrow morning."
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